diff --git a/requirements/deploy.txt b/requirements/deploy.txt
index 5c3708e..5858141 100644
--- a/requirements/deploy.txt
+++ b/requirements/deploy.txt
@@ -1,3 +1,3 @@
 wheel==0.34.2
-flit==2.3.0
+flit==3.10.1
 
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 77b0538..1e8ac3e 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,5 +1,5 @@
 -r ci.txt
 -r doc.txt
 pytest-sugar==0.9.3
-flit==2.3.0
+flit==3.10.1
 black==19.10b0